Method and device for performing sidelink communication in wireless communication system

Abstract

A method and a device for performing communication in a wireless communication system are disclosed. A method performed by a first terminal in a wireless communication system, according to one embodiment of the present disclosure, may comprise the steps of: receiving, from a base station, information about one or more CG configurations for sidelink (SL) communication with at least one second terminal; receiving, from the base station, information for activating a specific CG configuration from among the one or more CG configurations, wherein a plurality of SL CG resource sets are configured for the specific CG configuration within one CG period; and performing multi-TB transmission for the at least one second terminal in the plurality of SL CG resource sets.

1 . A method comprising:
 receiving information on one or more CG (configured grant) configurations for sidelink (SL) communication with at least one second UE from a base station;   receiving information for activating a specific CG configuration among the one or more CG configurations from the base station,   wherein, for the specific CG configuration, a plurality of SL CG resource sets are configured within one CG period; and   performing multi-Transport block (multi-TB) transmission for the at least one second UE in the plurality of SL CG resource sets,   wherein a physical sidelink feedback channel (PSFCH) resource is respectively allocated for each SL CG resource set included in the plurality of SL CG resource sets for the one CG period.   
     
     
         2 . The method of  claim 1 ,
 wherein different SL CG resource sets included in the plurality of SL CG resource sets are used for transmission of different TBs.   
     
     
         3 . The method of  claim 1 ,
 wherein each SL CG resource set included in the plurality of SL CG resource sets includes consecutive SL CG resources.   
     
     
         4 . The method of  claim 1 ,
 wherein the plurality of SL CG resource sets are allocated by the base station.   
     
     
         5 . The method of  claim 1 , further comprising:
 receiving downlink control information (DCI) indicating retransmission for the multi-TB transmission from the base station,   wherein the DCI includes information on allocation of retransmission resources for different TBs in the multi-TB transmission.   
     
     
         6 . The method of  claim 1 , further comprising:
 reporting HARQ-ACK information received from at least one second UE to the base station on a plurality of PUCCH resources.   
     
     
         7 . The method of  claim 6 ,
 wherein a PUCCH resource for reporting the HARQ-ACK information to the base station is configured differently for each SL CG resource set included in the plurality of SL CG resource sets.   
     
     
         8 . The method of  claim 1 ,
 wherein, based on that a plurality of consecutive SL CG resources exist within the one CG period for the specific CG configuration, the plurality of consecutive SL CG resources are divided into a plurality of SL CG resource sets based on a pre-defined rule.   
     
     
         9 . The method of  claim 8 ,
 wherein each SL CG resource set included in the plurality of SL CG resource sets includes [a number of the consecutive SL CG resources/a number of TBs of the multi-TB transmission] consecutive SL CG resources.   
     
     
         10 . The method of  claim 1 ,
 wherein the information includes information on a number of TBs or a number of HARQ processes in the one CG period.   
     
     
         11 . The method of  claim 1 ,
 wherein, based on the plurality of SL CG resource sets including a first SL CG resource set and a second SL resource set,   a first PSFCH resource for TB transmission on the first SL CG resource set is allocated after a certain time based on a last TB transmission time in the first SL CG resource set, and   a second PSFCH resource for TB transmission in the second SL CG resource set is allocated after a certain time based on a last TB transmission time in the second SL CG resource set.   
     
     
         12 . A first user equipment (UE) comprising:
 at least one transceiver; and   at least one processor connected to the at least one transceiver,   wherein the at least one processor is configured to:   receive, through the at least one transceiver, information on one or more CG (configured grant) configurations for sidelink (SL) communication with at least one second UE from a base station;   receive, through the at least one transceiver, information for activating a specific CG configuration among the one or more CG configurations from the base station,   wherein, for the specific CG configuration, a plurality of SL CG resource sets are configured within one CG period; and   perform, through the at least one transceiver, multi-Transport block (multi-TB) transmission for the at least one second UE in the plurality of SL CG resource sets,   wherein a physical sidelink feedback channel (PSFCH) resource is respectively allocated for each SL CG resource set included in the plurality of SL CG resource sets for the one CG period.   
     
     
         13 . (canceled) 
     
     
         14 . A base station comprising:
 at least one transceiver; and   at least one processor connected to the at least one transceiver,   wherein the at least one processor is configured to:   transmitting, through the at least one processor, information on one or more configured grant (CG) configurations for sidelink (SL) communication between a first UE and at least one second UE to the first UE;   transmitting, through the at least one processor, information for activating a specific CG configuration among the one or more CG configurations to the first UE,   wherein, for the specific CG configuration, a plurality of SL CG resource sets are configured within one CG period; and   receiving, through the at least one processor, HARQ-ACK information for multi-Transport block (multi-TB) transmission between the first UE and the at least one second UE in the plurality of SL CG resource sets from the first UE,   wherein a physical sidelink feedback channel (PSFCH) resource is respectively allocated for each SL CG resource set included in the plurality of SL CG resource sets for the one CG period.   
     
     
         15 - 16 . (canceled)